Common carriers—Transportation or delivery of marijuana, useable marijuana, marijuana concentrates, immature plants or clones, marijuana seeds, and marijuana-infused products—Employees prohibited from carrying or using firearm during such services—Exceptions—Use of state ferry routes.

(1) A licensed marijuana producer, marijuana processor, marijuana researcher, or marijuana retailer, or their employees, in accordance with the requirements of this chapter and the administrative rules adopted thereunder, may use the services of a common carrier subject to regulation under chapters 81.28 and 81.29 RCW and licensed in compliance with the regulations established under RCW 69.50.385, to physically transport or deliver, as authorized under this chapter, marijuana, useable marijuana, marijuana concentrates, immature plants or clones, marijuana seeds, and marijuana-infused products between licensed marijuana businesses located within the state.

(2) An employee of a common carrier engaged in marijuana-related transportation or delivery services authorized under subsection (1) of this section is prohibited from carrying or using a firearm during the course of providing such services, unless:

(a) Pursuant to RCW 69.50.385, the state liquor and cannabis board explicitly authorizes the carrying or use of firearms by such employee while engaged in the transportation or delivery services;

(b) The employee has an armed private security guard license issued pursuant to RCW 18.170.040; and

(c) The employee is in full compliance with the regulations established by the state liquor and cannabis board under RCW 69.50.385.

(3) A common carrier licensed under RCW 69.50.385 may, for the purpose of transporting and delivering marijuana, useable marijuana, marijuana concentrates, and marijuana-infused products, utilize Washington state ferry routes for such transportation and delivery.

(4) The possession of marijuana, useable marijuana, marijuana concentrates, and marijuana-infused products being physically transported or delivered within the state, in amounts not exceeding those that may be established under RCW 69.50.385(3), by a licensed employee of a common carrier when performing the duties authorized under, and in accordance with, this section and RCW 69.50.385, is not a violation of this section, this chapter, or any other provision of Washington state law.